Localized surface plasmon resonance refractometer based on no-core fiber

Yan Ru Wang; Zhi Qiang Tou; Chun Liu Zhao; Ping Lam So; Chi Chiu Chan

doi:10.1117/12.2263473

23 April 2017 Localized surface plasmon resonance refractometer based on no-core fiber

Yan Ru Wang, Zhi Qiang Tou, Chun Liu Zhao, Ping Lam So, Chi Chiu Chan

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103232R (2017) https://doi.org/10.1117/12.2263473
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

A novel optical fiber refractometer based on localized surface plasmon resonance (LSPR) is presented. The sensor was prepared by splicing a short segment of no-core fiber (NCF) between two multimode fibers. A gold nanoparticles (AuNPs) film was self- assembled on the sidewall of the NCF. When LSPR peak wavelength is used to investigate the refractive index (RI), sensitivity of 121.88 nm/RIU (R² = 0.9107), 523.14 nm/RIU (R² = 0.983) with limit of detection 1.64× 10^-3 RIU, 3.82× 10⁻⁴ RIU over the RI range of 1.33-1.37 and 1.37-1.42, respectively. When normalized transmittance is used to investigate the performance of the sensor, sensitivity of -279 %/RIU (R² = 0.9922) with limit of detection 4.61 × 10^-5 RIU over the RI range of 1.33 -1.42.

Citation Download Citation

Yan Ru Wang, Zhi Qiang Tou, Chun Liu Zhao, Ping Lam So, and Chi Chiu Chan "Localized surface plasmon resonance refractometer based on no-core fiber", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232R (23 April 2017); https://doi.org/10.1117/12.2263473

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